FR731860A - Haut-parleur perfectionné - Google Patents

Haut-parleur perfectionné

Info

Publication number
FR731860A
FR731860A FR731860DA FR731860A FR 731860 A FR731860 A FR 731860A FR 731860D A FR731860D A FR 731860DA FR 731860 A FR731860 A FR 731860A
Authority
FR
France
Prior art keywords
advanced speaker
speaker
advanced
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Societe Francaise Radio Electrique
Original Assignee
Societe Francaise Radio Electrique
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Societe Francaise Radio Electrique filed Critical Societe Francaise Radio Electrique
Application granted granted Critical
Publication of FR731860A publication Critical patent/FR731860A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR731860D 1931-04-13 1931-04-13 Haut-parleur perfectionné Expired FR731860A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR731860T 1931-04-13

Publications (1)

Publication Number Publication Date
FR731860A true FR731860A (fr) 1932-09-09

Family

ID=9119774

Family Applications (1)

Application Number Title Priority Date Filing Date
FR731860D Expired FR731860A (fr) 1931-04-13 1931-04-13 Haut-parleur perfectionné

Country Status (1)

Country Link
FR (1) FR731860A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2840177A (en) * 1955-07-28 1958-06-24 Alexander I Abrahams Loudspeaker diaphragm support

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2840177A (en) * 1955-07-28 1958-06-24 Alexander I Abrahams Loudspeaker diaphragm support

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